Home / 385,386.12-531,788.48-222,066.44

Finding the Fourth Proportional to 385,386.12, 531,788.48 and 222,066.44

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Solution

The fourth proportional to 385,386.12, 531,788.48 and 222,066.44 is: 306,426.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,386.12 : 531,788.48 = 222,066.44 : x
  2. Step 2: Convert to fraction form
    385,386.12/531,788.48 = 222,066.44/x
  3. Step 3: Cross multiply
    385,386.12x = 531,788.48 × 222,066.44
  4. Step 4: Simplify right side
    385,386.12x = 118,092,374,586.61
  5. Step 5: Solve for x
    x = 118,092,374,586.61/385,386.12
  6. Step 6: Final answer
    x = 306,426.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.